Formatting problems in some articles

There are a bunch of annoying formatting problems in some of the articles on the site.

E.g.


Can somebody proof-read them and fix the formatting problems?

Here are some screenshots of concrete examples:


Section 3 of the ES2015 article linked in the original post.

More to follow as I’m a new user and I can only post one image per reply.


Section 4 of the ES2016/2017/2018 article linked in the original post.


Many sample code blocks that are squashed into single lines.

Thanks for your help in making freeCodeCamp better!

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